In general, eating bean skins in moderation will not be fat, and can provide the body with protein and other nutrients. Bean skin is a soybean product, the main component is soybean and other ingredients, containing carbohydrates, protein, saturated fatty acids, fat, minerals and other nutrients. Each 100 grams of dried bean skin contains 447 calories, including 12.5 grams of carbohydrates, 51.6 grams of protein and 23 grams of fat. Among them, protein reaches about 50%, which can be used as a supplementary source of protein. Moderate consumption of bean skins is not fattening, but large quantities may lead to a buildup of calories, resulting in gastrointestinal discomfort and the risk of gaining weight. It is recommended to consume fresh bean skins, avoid consuming bean skins that appear to be obviously spoiled, such as moldy and smelly, which can easily lead to diarrhea, abdominal pain, and even food poisoning, and if these situations occur, you should seek medical attention in a timely manner.